- deriveNaturalJoinColumnList
Derives the list of column names suitable for NATURAL JOIN. These are the
columns that occur exactly
- getEnclosingSelectScope
- getRelOptTable
Converts a SqlValidatorScope into a RelOptTable. This is only possible if the
scope represents an id
- lookupField
Looks up a field with a given name, returning null if not found.
- uniquify
- addAlias
Converts an expression "expr" into "expr AS alias".
- checkCharsetAndCollateConsistentIfCharType
- createTypeFromProjection
- getAlias
Derives an alias for a node, and invents a mangled identifier if it cannot.
Examples: * Alias: "1 +
- lookup
Resolves a multi-part identifier such as "SCHEMA.EMP.EMPNO" to a namespace. The
returned namespace,
- newValidator
Factory method for SqlValidator.
- lookupFieldType
Looks up a field with a given name and if found returns its type.